MEDIUM4.9
GHSA-f4v7-3mww-9gc2
Keycloak allows unrestricted admin use of system and environment variables
Quick fix
GHSA-f4v7-3mww-9gc2 — org.keycloak:keycloak-quarkus-server: upgrade to the fixed version with the command below.
# pom.xml: bump <version>26.0.8</version> for org.keycloak:keycloak-quarkus-serverDetails
A security vulnerability has been identified that allows admin users to access sensitive server environment variables and system properties through user-configurable URLs. Specifically, when configuring backchannel logout URLs or admin URLs, admin users can include placeholders like ${env.VARNAME} or ${PROPNAME}. The server replaces these placeholders with the actual values of environment variables or system properties during URL processing.
Are you affected?
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Affected packages
Maven/org.keycloak:keycloak-quarkus-server
Introduced in:
0Fixed in: 26.0.8Fix
# pom.xml: bump <version>26.0.8</version> for org.keycloak:keycloak-quarkus-serverReferences
- https://github.com/keycloak/keycloak/security/advisories/GHSA-f4v7-3mww-9gc2[WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2024-11736[ADVISORY]
- https://github.com/keycloak/keycloak/commit/7a76858fe4aa39a39fb6b86dd3d2c113d9c59854[WEB]
- https://access.redhat.com/errata/RHSA-2025:0299[WEB]
- https://access.redhat.com/errata/RHSA-2025:0300[WEB]
- https://access.redhat.com/security/cve/CVE-2024-11736[WEB]
- https://bugzilla.redhat.com/show_bug.cgi?id=2328850[WEB]
- https://github.com/keycloak/keycloak[PACKAGE]